111799 has 2 divisors, whose sum is σ = 111800.
Its totient is φ = 111798.
The previous prime is 111791. The next prime is 111821. The reversal of 111799 is 997111.
It is a weak prime.
It is an emirp because it is prime and its reverse (997111) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 111799 - 23 = 111791 is a prime.
It is a plaindrome in base 10.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (111791) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55899 + 55900.
It is an arithmetic number, because the mean of its divisors is an integer number (55900).
2111799 is an apocalyptic number.
111799 is a deficient number, since it is larger than the sum of its proper divisors (1).
111799 is an equidigital number, since it uses as much as digits as its factorization.
111799 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 567, while the sum is 28.
The square root of 111799 is about 334.3635745712.
The cubic root of 111799 is about 48.1739923857.
The spelling of 111799 in words is "one hundred eleven thousand, seven hundred ninety-nine".